Speeder is pulling directly away and increasing his distance

Reference no: EM13655217

A speeder is pulling directly away and increasing his distance from a police car that is moving at 25.1m/s with respect to the ground. The radar gun in the police car emitsan electromagnetic wave with a frequency of 7.16E+9 Hz. The wave reflects from the speeder's car and returns to the police car,where its frequency is measured to be 322 Hz less than the emitted frequency. Calculate the speeder's speed with respect to the ground.

Reference no: EM13655217

Questions Cloud

Starts from rest and rolls without slipping for a distance : A wheel of mass 1.24kg and radius 0.44 (I = 0.5mr^2) starts from rest and rolls without slipping for a distance of 1.7m down a 35 degree incline. How fast is it traveling at that point?

How much energy does this wave carry through the window : The electromagnetic wave that delivers a cellular phone call to acar has a magnetic field with an rms value of 1.38E-10 T. The wavepasses perpendicularly through an open window, the area of which is0.244 m2.

The average intensity of sunlight reaching the earth : The average intensity of sunlight reaching the earth is 1390 W/m2. A charge of 2.38 x10−8 C is placed in the path of this electromagnetic wave. What is the magnitude of the maximum electric force that the charge experiences?

Difference between source voltage and current for circuit : An ac circuit contains a 10.0 Ωresistor, a 6.30 µF capacitor, and a3.70 mH inductor connected in series to anac generator with an output voltage of 50.0 V (peak) and frequency of 1.57 kHz. Find the impedance, the power factor, andthe phase difference..

Speeder is pulling directly away and increasing his distance : A speeder is pulling directly away and increasing his distance from a police car that is moving at 25.1m/s with respect to the ground. The radar gun in the police car emitsan electromagnetic wave with a frequency of 7.16E+9 Hz.

What is the capacitive reactance : A parallel plate capacitor has two plates, each of area3.0x10-4 m2, separatedby 3.5x10-4 m. The space betweenthe plates is filled with a dielectric. When the capacitor isconnected to a source of 120 V rms at 8.5kHz, an rms current of 1.6 x10-4 A is..

What is the net emf in the circuit : A square wire loop with 1.87 m sides is perpendicular to a uniformmagnetic field, with half the area of the loop in the field asshown in the figure 30-44.

Find the opticalpower of the mirror : The optical power ofan optical device of focal length f is ? = 1/f,the unit of which is 1/m or m–1 ordiopter. An image is described as real or virtual, inverted ornoninverted, reversed or unreversed, magnified or minfied, and onthe same or the opp..

Magnetic field is perpendicular to plane of acircular loop : A uniform magnetic field is perpendicular to the plane of acircular loop of diameter 12 cm formed from wire of diameter 3.5 mmand resistivity of 2.11 x 10-8Ω·m. At what rate must the magnitude of the magnetic field change to induce a9.5 A current..

User Account

All Pages